Box-covering machine.



l UNITED STATES PATENT onirica.

exicovm ne Meanies y Patented' 6, iillg Appnaann'mea my is, 1917. summers-1,510.

1,302,546, Spearmanhammam;

able `knife withV the `greatest facility and a minimumconsumption of time. salneand-the power oint and-*to the frame A stillfurther object of the 'inventiqn re- 1 dfthetoppingmac ineat 19. Extenfdingf sidesy in so constructing the device'that itV fromand rigid with-:theshaft-M is anfarm f 4,may be applied not: only 'to newly con' 20, to'wThich-isattached-:aconnetingerod21 $5 structed machines, but also to various ma 'havin aturn buckle'22 thereiirmeans y90 chines which are at'present-on `the market; of lwhich'rlitslength"may-'be varied: hexothel.' the drawings l end-"ofthis"connectingirod is 4provided "with Figure 1 is a side elevationof a portion anvelongated slot 23troughwhichapin 241:` of atopping machine with the inventionin on the lever 16, extends. 'l.`his"lever4 16' is cor. orated thereingandv y normally-"held by the`spring--18g` *sof thatithe 95 ig. 2 is an elevational view partly broken* pin 24 is located in the'vupper'end-of the slot away, looking at right anges to Fig. 1. 23",` Afor the: purpose of supportingftheknifer` In the drawingsga portion-ofthe frame-1 through the rod.` Alink 25is4 pivotedat 26 lof, a ltopping machine is illustrated, which to `the power end Vof the. lever, and at 257 45 carries at itsupprendtheusualnaper strip tomvthe core-28 of `a solenoid. magnet "29.:100 guide roller 2. ountedon the forward side This magnet issupportedfon the frame 1` of4 of the `frame-1 is` a worka support 'which comjalle .mafehine by suitablebraeketsf. prisesa base 3 "and a table 4, whiehlatter is Thus" it will'be seen that the -energiisingof` fhinged'atto a block 6icarried bythe upper the'- ma etg29 will caus'e the movementof side ofthe base 3.- rPhe tablel isnormally thecore= 28, andyconsequently', ythe downy105 ur l mgay from the base Bbycoileds ringer ward movement of the? lever lfabou'tQts" 7 which are disposed between theb ook 6a pivot, 1-ai'id'fthafr;` when ther-magnet; is dener-` and theftable. The upward movement of gized,'thevsprngf18 will'fcausethe "upward this table 4de, however, limited vluy-a stop-.8; movement: of` the lever 1-6about itspivbty and the space between the table and the base until such movement is arrested by a stop 110' To all whom #may concern: l

Be it known that I, EDGAR M. Hawnrivs, a citi-zenof the United States, and resident of Rochester, in the county of Monroe and Affurther object of the-invention resid-es* in incorporating the controlling; mechanism in the work support whereby the operator l rmay bring about the actuation-ofy the mow is inclesed by an apron, Slearried bythe table and niovabletherewith'. Thiswork support isA provided with the usual ,vertical standard 10 andxadjustingdevices 11, so thatitmay bev-moved ethervertically upward ordowntable, ythe following 'mechanism' is provided.l Agjlever 16 is pivpted at 17 to the 'rameof the topping machineand is normal-ly drawn upwardlyfbyA a coiled spring 18. which is se` cured to thelever between lthe' fulcrum of'the 5 State of New York, have invented'certain 60 new and useful Improvements inFBox-Goverward and-horizontally in transverse and ing Machines, of which the following is a lateral( directions, in the manner which is specification. Mullin-machines of this general type,

This invention relates to that class of nian/lounted onthe "upper end of the ,framey 1 10 chines which are adapted to apply acoverand disposed `"between the guide roller 2 and 65 ing of paper to the tops and bottoms of `tlie "work:table 4isa statipnary'knife 12 over paper or straw-board boxes or the likeyand ,which the stri 'of paper passes and with is directed particularlyv to the mechanism for which a movah e knife 13, carried by a shaft controlling the movable knife which oper- 1l, is arranged to coperatie. The movement 15 ates t0 sever the paper from the' supply strip. ofthe knife 13 toward the stationary knife 12, 70

An `object of the invention resides in the about the axis of the'shaft 14 as "a pivot, is 'provision of electrically actuated means for; cushioned by' a spring-15 in a usualfand `olivi` permtting'themovable knife to operate-and ous manner, which spring-is put `under com-` which is subject to the 4direct control ofthe' pression oy? the movement of the knife and,"`

2o operator. therefore', subsequently assists in .returning 75 A further object of the in-ventionresicles; tliekni'fe toits'inoperativeposition. in the provision of a mechanism Wher'ein'the In order that'` the operatorNl mayA bring movable knife is automatically rendered-inabout themovement--of the knife `13 to sever operative and returned to its initial posi the-strip of'paper atthe desired; times and 25 tion. w-itholit'` removing his hands from the work `so f screws are insulated from `stuck and hard to move,

will pass to the lower 31, which is vlocated on the frame andis ar-v ranged to engage the lever. The solenoid magnet 29 is interpolated in a circuit which includes supply and return wires arranged in a cable 32, which' wires extend to a suitable source of electrical energy (nogshown), and one of which, 33, extends to a bindin post 34 carried by the base 3, and the other of which, 35, extends to a binding post 36, which is carried by the work table 4. 'These binding posts are insulated from the respecti've-parts-by` which they are lcarried by suitable' insulating plates 37, to which plates contacts 38 are attached by screws 39, or other equivalent means. The headsof these theV adjacent portions of the base 3 and table 4 by suitable insulating material 40. The contacts 38 are connected to the binding posts 34 and 36 by suitable conductors 41. The springs 7-nor mally maintain the work table 4 in a raised position, as aforesaid, and the contacts 38 out of engagement with each other.

When 1t is desired to sever the paper from the supply strip, in the covering open ation, it is only necessary for the operator to depress the work table 4, either by means of applying force to the box which is being operated upon or directly to the table. This movement of thework table 4 will cause the engagement of the contacts -38 and the completion of the circuit through ,the solenoid magnet 29.. This-magnet,'bei-ng energized, will draw-the core 28 downwardly, an consequently move the lever 16, so that the pin end ofthe slot 23 in the rod 21. This will permitl the movable knife 13 to drop under the action of gravity and thus sever the paper. It is, of course, to be here understood that the force exerted lby the magnet is appreciably greater than that exerted by the spring 18, and, consequently, the lever 16 willl move downwardly in spite of the spring when thel magnet is energized. Moreover, the spring V18 is of such strength that when the magnet 29 is deenergized, it; will cause the .upward-.move ment of the lever 16,' together with thecore 28, and the" consequent resetting of the movable: knife 13.

Under ordinary conditions, the knife 13 will fall as soon as the pin 24 is moved to the lower end of the slot 23, but it'may occur that the bearings for the knife 13 are too tight, or the knife `otherwise vbecomes in which event, the knife will not fall under theaction of gravity. Therefore,'th`e core 28 is allowed movement somewhat in excessof the length of the slot 23,

23 before the knife 13 hasmoved, the movement of the core 28 will, through-'the engagementjof the pin 24 with the lower end ofthe. slot, produce a ldownward pull on the so' that, should the pin 24 move to the extreme lower end of' the slot movable 1`fe "be drawn downward posi- Y tively. p Thus in the event of an operator accidentallyy getting his or her hand between the knives, no injury will result, as,y the knife will fall by gravity and its weight or extentof movementA will not be suicient to cause injury.

It will thus be table is depressed, the magnet willbe energized, and, consequently, the movable knife 13 be released, so that it may move downward and operate under the action of gravity, and further, that upon the breaking of the energizing circuit for the magnet, the knife, together with the remaining parts, will be automatically returned to their initial positions ready for another operation.

What I claim is 1. In a box covering machine, the combination with a movable knife, of a movable work table` and electrically operated means controlled by the movement of the table for controlling the movement of the knife. l

2. In a box .covering machine, the com'- binationwith a movable knife, of a movable work table, and magnetic means controlled bythe movement o-f the table for controlling lthe movement of the knife.

3. In a' box coveringl machine, the combination with a gravity actuated knife, of means for raising the same and maintaining it in its raised position, and electrically controlled means for rendering mentioned means inoperative.

4. In a box covering machine, the combination with a movable knife, of means for preventing the movement of the same, andv electrically controlled means lfor rendering the first-mentioned means inoperative andfor initially imparting movement to the knife.

5.' In a box covering machine, the oombination with a movable knife, of means for preventing the movement of the same, and electrically controlled means for rendering the first-mentioned means. inoperative and for initially imparting movement tol 'the knife, but incapableof continuously impart ing movement to the knife.

6. In a box covering machine, the combination with a movable knife.l of a movable work table, a solenoid magnet interpolated in an open circuit for controlling the move-4 ment of the ative, upon a movement of the close the circuit through the magnet whereby the latter will be energized and-the knife permitted -to fall. 'v l 7. In.' abox covering machine. vthe combination with a (gravity actua-ted knife, of

seen that when the work with o yIv'ative i `which` lneludes a solenoldmagnet imbla# ljiinationwith a gravity actuated"knife,` ofa support, av movable "Work table` mounted hereon, means for normally` maintaining L5" `heknife in its'raised positlon, meansvfor n 1 nmindering` said vlastmelitionel means" in- `jvvhich n ie interpolated in an ,open circuit' the fltei'minals of which are'carriediby the Sup- 20 i breaking the ci'rcitff, n

L wow i rtf` a y ll'novable Workl table` hmonnted `means-for, normally maintaining@ ais'ed position;` andjy meansfl Saldlastf'nlentioned mIlVSIli l bination with a'gravity` 1w ich isliiiterpolated'in.anfopen circuit, the:`

pont; and .table [and are moved into 'contact `Withfeach"other upon a movement ofthe tioned means inoperativ Work "cable,` thelfielnoveml i 8."In a box` covering machine,` the coni` bination with a "gijavitygaotnatehknife? A n `position,magnetic operative Whlch `includes a solenoid magnet i'tand table and 'zi-removed intofcontact lltwithy Ieach other `upon a movement of the ingfthe table' to` `:initial position and` "9; Ina box covering machine,` the oo1n`` `ination ywith a gravity. actuatedknifeyof means *,forfjantomatically raising ythe same ynd" [fon noi'imally maintaining yit in yits f mingy machine; g

w 'ff means `for` raisnngythev same an vr.,nofinally maintaining: it" 5 positio' netic -means "fors tendering,isaid` l tiolthe energizaationfl of; the `magri n lfL; In box` covering' machine, 1t e co means foi" automatieallyj and normally maintain? n n "M'ensv orfjrendelfingaid n first-'mentionedimeanahinoperativegyand K movable` `Work table,y the4 'movementsl of]` which control theenergizatiof ofthemag-f i M.y HAWKINSQQ" i 

